Patents by Inventor Michael D. Pitcel
Michael D. Pitcel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230313719Abstract: A small-air cooled internal combustion engine includes an engine block including a cylinder, a piston within the cylinder, a crankshaft configured to be driven by the piston, a blower system including a fan that is configured to pull air over the engine block, a fuel system for supplying an air-fuel mixture to the cylinder, and an exhaust system for removing exhaust from the cylinder. The exhaust system comprises an exhaust inlet, a muffler and, a catalytic converter including a catalyst. The catalyst comprises a precious metal loading having ruthenium as a primary element by mass.Type: ApplicationFiled: May 21, 2021Publication date: October 5, 2023Applicant: BRIGGS & STRATTON, LLCInventors: Jacob Zuehl, Michael D. Pitcel
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Patent number: 11002234Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: GrantFiled: April 30, 2020Date of Patent: May 11, 2021Assignee: Briggs & Stratton, LLCInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20200256295Abstract: A fuel delivery injector includes a housing, an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity, and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity. A magnetic assembly is fixedly positioned within the cavity, and a pumping assembly includes a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position. A valve is positioned within the piston and is movable between an open position and a closed position. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Applicant: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Patent number: 10677205Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: GrantFiled: December 21, 2018Date of Patent: June 9, 2020Assignee: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20190136808Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The liquid fuel entering the housing through the inlet port flows from the inlet port to the cavity and fuel vapor entering the housing through the inlet port is directed through a conduit to the outlet port.Type: ApplicationFiled: December 21, 2018Publication date: May 9, 2019Applicant: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Patent number: 10197025Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The end cap includes a protrusion extending therefrom and terminating at an end face, the end face proximate the magnetic assembly and the protrusion is configured to redirect fuel vapor toward the outlet port.Type: GrantFiled: May 12, 2017Date of Patent: February 5, 2019Assignee: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz
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Publication number: 20180252191Abstract: A fuel delivery injector includes a housing, an end cap including an inlet port fluidly coupled to a cavity to direct fuel vapor and liquid fuel into the cavity and an outlet port fluidly coupled to the cavity to direct fuel vapor and liquid fuel out of the cavity, a magnetic assembly fixedly positioned within the cavity, and a pumping assembly including a bobbin and a piston. A return spring is coupled to the pumping assembly to bias the pumping assembly to a home position and a valve assembly including a biasing spring is positioned between an inlet chamber and an outlet chamber. The end cap includes a protrusion extending therefrom and terminating at an end face, the end face proximate the magnetic assembly and the protrusion is configured to redirect fuel vapor toward the outlet port.Type: ApplicationFiled: May 12, 2017Publication date: September 6, 2018Applicant: Briggs & Stratton CorporationInventors: Michael D. Pitcel, David W. Procknow, Jacob Zuehl, David A. Kratz